/Engine/Source/Developer/AssetTools/Public/IAssetTools.h
Allocates a Category bit for a user-defined Category, orEAssetTypeCategories::Miscif all available bits are allocated. Ignores duplicate calls with the same CategoryKey (returns the existing bit but does not change the display name).
[EAssetTypeCategories::Type](API\Developer\AssetTools\EAssetTypeCategories__Type) RegisterAdvancedAssetCategory ( [FName](API\Runtime\Core\UObject\FName) CategoryKey, [FText](API\Runtime\Core\Internationalization\FText) CategoryDisplayName )